Klipsch GMX D-5.1 manual Power Connections, The Control Module, B

Power Connections

The last setup steps are the power connections (see Fig. 2). Plug the DC supply cord into the jack labeled "Decoder Supply" on the subwoofer cabi- net. Next, plug the other end into the jack labeled "DC 7V IN" on the back of the GMX control mod- ule. Plug the subwoofer’s power cord into a wall outlet or AC power strip. Your GMX D-5.1 is now ready to rumble.

The Control Module

Everything you need to run the GMX D-5.1 is on the face of the control module. The function and opera- tion of each control is listed below (see Fig. 4A):

1)Display. Indicates master volume setting and level trim during setup.

2)Volume Pads. Press the (+) and (-) buttons to raise or lower the volume. These buttons are also used to adjust the levels of the speakers in the system relative to one another (channel balance).

3)Power. Turns the system on and off. The red LED indicates standby mode.

4)Input. Pressing this button selects one of the inputs. Choosing an input will cause its indicator LED above the button to light up.

5)Surround. Pressing this button selects one of the available audio modes. Modes that can be used will depend on the input and type of signal.

•Dolby Digital Signals: If you have selected one of the digital inputs, it will automatically switch to the appropriate Dolby Digital mode when a Dolby Digital signal is present. The Dolby Digital indicator LED (above the Surround button) will light. Dolby Digital modes are available only when a Dolby Digital signal is present at the selected digital input; no surround changes may be made to a discrete Dolby Digital 5.1 signal. The Surround button will be active in Dolby Digital mode only when the signal is two-channel stereo, as described immediately below.

•Stereo Signals: If you have selected the analog input or a digital input receiving a PCM signal, such as from a CD, you have a choice of four modes: Stereo, 5-Channel Stereo, Dolby Pro Logic II Cinema and Music. The Dolby Pro Logic II modes can also be applied to a Stereo Dolby Digital signal. Switch modes by pressing the Surround button until you reach the one you want, as indicated by the LEDs above the button. Stereo is indicated when no LEDs are lit.

6)Test. This button turns the channel test signal on and off. When on, the LED above the button will light and you will hear noise for several seconds from each satellite speaker in turn. The signal will rotate from speaker to speaker in this fashion until you turn it off. This signal has two uses:

•Making sure that all speakers are connected and working.

•Helping you set channel balance. Because the five satellites in the GMX D-5.1 are identical, you will usu- ally get correct channel balance automatically. To find out, turn the test signal on and listen; it should be equally loud from each speaker. If not, you can use

the CTR and SURR buttons (described below) together with the volume pads to adjust the level of the sur- round speakers up or down relative to the front left and right.

The adjustment level trim is from -9dB to +9dB, with default settings of "0." Note: Possible gain range settings

for each channel are -9dB to +9dB and will be retained as the main volume approaches 60dB. However, new settings made at high volumes will only be allowed as the total reaches 60dB. In other words, if the main volume reads 55dB, the boost will be limited to +5dB, and if main volume is set to 60dB (maximum), no boost is available.

7)Dyn. Comp. Toggles through the three modes of the Dolby Digital dynamic compression function. Dynamic compression reduces the level difference between loud and soft sounds. This can be useful when you are having trouble hearing dialogue clear- ly or when you want to minimize disturbance of oth- ers by very loud sounds. Available modes are "Half," "Full," and "Off"; the selected mode will be indicated by the LEDs above the button. "Off" selects no com- pression, whereas "Full" selects maximum compres- sion. This function is available only when the system is processing a Dolby Digital input.

8)Sub. Allows adjustment of the subwoofer’s relative level. To use, press the button until the indicator LED lights. Use the volume pads to raise or lower the bass level until you get the balance of lows to highs that you want. The central display will show how much boost or cut you have applied, in decibels (dB). Pressing the button again until the LED goes out will lock the setting and return the volume pads to master mode, controlling overall level. To return to the origi- nal setting, just turn the control on again and adjust the level until the display shows "0." Note: This also controls the "SWS Link" output level (see "SWS Link" section).

9)Surr. Allows adjustment of the surround speakers’ level relative to that of the front left and right. To use, press the button until the indicator LED lights. Use the volume pads to raise or lower the surround level until you get the balance that you want. The central dis- play will show "SR" or "SL" to indicate adjustment of the Surround Right or Surround Left output channel, and then switch to indicate how much boost or cut you have applied in decibels (dB). Pressing the button once will allow you to adjust the surround right chan- nel. Pressing the button a second time will allow you to adjust the surround left channel. Pressing the button again until the LED goes out will lock the setting and return the volume pads to master mode, controlling overall level. To return to the original setting, just turn the control on again and adjust the level until the dis- play shows "0."

FIGURE 4B